Re: Changing top level files and include/ files over to GPLv3

Alexandre Oliva
2007-07-09T17:56:38Z

On Jul 9, 2007, Corinna Vinschen <vinschen@redhat.com> wrote:

> This isn't quite correct. v3 adds restrictions which were not present
> in v2.

Can you name any that doesn't arguably qualify as a "further
restriction" already prohibited by section 6 of GPLv2?

That it plugs potential ambiguities is what makes it incompatible.
These are not really new requirements.

> That's why linking v3 and v2-only stuff violates v2-only, but not
> v3.

Linking v3 and v2-only violates both. They're mutually-incompatible.
GPLv2 adds requirements on top of GPLv3, and GPLv3 removes ambiguities
present in GPLv2, which some frame as new requirements.

--
Alexandre Oliva http://www.lsd.ic.unicamp.br/~oliva/
FSF Latin America Board Member http://www.fsfla.org/
Red Hat Compiler Engineer aoliva@{redhat.com, gcc.gnu.org}
Free Software Evangelist oliva@{lsd.ic.unicamp.br, gnu.org}